1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** 18 * Automatically generated fuzz test that exposed bug in the way bounds 19 * check elimination visits basic blocks. If, after dynamic bce, the same 20 * block would be visited again, then static length based bce would incorrectly 21 * feed information back to itself and removed a necessary bounds check. 22 */ 23 public class Main { 24 25 private static int[][][] mA = new int[10][10][10]; 26 27 private static int mX = 17; 28 29 private static int doit() { 30 int l0 = (((++mA[7][2][8]) <= mA[0][1][3]) ? (++mA[9][0][5]) : ((( -mA[0][7][0]) * ((mX == mX) ? 180 : mX)) + (mA[7][8][8]++))); 31 mA[1][0][4] -= mX; 32 int l1 = (((l0 >= ( ~mA[6][7][5])) && ((921 <= l0) && (mA[3][9][6] > l0))) ? mX : (l0--)); 33 int l2 = ( -384); 34 for (int i0 = 7 - 1; i0 >= 1; i0--) { 35 mA[6][0][0] -= ((((l0++) == ( -mX)) ? (((mA[3][i0][1] > 503) || (mX <= i0)) ? (--l0) : (l0--)) : mX) - ( ~(mX--))); 36 int l3 = 24; 37 int l4 = ((l2--) & mX); 38 for (int i1 = i0-2 - 1; i1 >= 3; i1--) { 39 for (int i2 = 2; i2 < i0; i2++) { 40 mA[i0][4][l3] >>= 1; 41 } 42 } 43 } 44 return 1; 45 } 46 47 public static void main(String[] args) { 48 int k = 1; 49 for (int i0 = 0; i0 < 10; i0++) 50 for (int i1 = 0; i1 < 10; i1++) 51 for (int i2 = 0; i2 < 10; i2++) 52 mA[i0][i1][i2] = k++; 53 try { 54 k = doit(); 55 } catch (Exception e) { 56 System.out.println("exception caught"); 57 } 58 System.out.println("FUZZ result = " + k + " " + mX); 59 } 60 } 61
